A Copa Libertadores group-stage match between Colombian club Independiente Medellín and Brazilian giants Flamengo was abandoned on Thursday after home supporters lit flares and threw objects onto the pitch shortly after kick-off, forcing CONMEBOL (South American football's governing body) to call off the game. Colombian media reported that Medellín fans were protesting against the club's management following a string of poor results. Flamengo, the defending Copa Libertadores champions, expect to be awarded a 3-0 walkover victory under CONMEBOL regulations, with the club's director of football stating that the home side had failed to guarantee security.